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Commit ee16feb0 authored by Berk Silemek's avatar Berk Silemek
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Update RFPA/readme.md

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...@@ -16,20 +16,20 @@ As a main component the broadband high power amplifier ZHL-20W-13SW+ (SN: RB8102 ...@@ -16,20 +16,20 @@ As a main component the broadband high power amplifier ZHL-20W-13SW+ (SN: RB8102
**Figure 2** - Wiring diagram of the 8-channel amplifier. The components used can be found in Table 1. **Figure 2** - Wiring diagram of the 8-channel amplifier. The components used can be found in Table 1.
| Item No. | Component | Function | Est. cost per Pc. [€] | Amount | Total cost [€] | Source 1| | Item No. | Component | Function | Est. cost per Pc. [€] | Amount | Total cost [€] |
| ----- | -------- | -------- | ----- | ----- | ----- | --------| | ----- | -------- | -------- | ----- | ----- | ----- |
| 1 | SMA connector | RF input | XX | 8 | xx | xx | | 1 | SMA connector | RF input | To be updated | 8 | To be updated |
| 2 | BNC connector | Input external 5V TTL signal | XX | 1 | xx | | | 2 | BNC connector | Input external 5V TTL signal | To be updated | 1 | To be updated |
| 3 | Toggle switch | TTL or manual blanking | XX | 1 | xx | | | 3 | Toggle switch | TTL or manual blanking | To be updated | 1 | To be updated |
| 4 | On/off-switch | 230 V power switch | XX | 1 | xx | | | 4 | On/off-switch | 230 V power switch | To be updated | 1 | To be updated |
| 5 | SMA connector | Output RF signal | XX | 16 | xx | | | 5 | SMA connector | Output RF signal | To be updated | 16 | To be updated |
| 6 | Fuse | 10 A / electrical protection | XX | 1 | xx | | | 6 | Fuse | 10 A / electrical protection | To be updated | 1 | To be updated |
| 7 | C14 connector | Main power supply connector | XX | 1 | xx | | | 7 | C14 connector | Main power supply connector | To be updated | 1 | To be updated |
| 8 | 24V Power supply | RSP-1000-24 | XX | 1 | xx | | | 8 | 24V Power supply | RSP-1000-24 | To be updated | 1 | To be updated |
| 9 | 5V Power supply | Auxiliary voltage for blanking | XX | 1 | xx | | | 9 | 5V Power supply | Auxiliary voltage for blanking | To be updated | 1 | To be updated |
| 10-17 | RFPA module | 20W power amplifier module | XX | 8 | xx | | | 10-17 | RFPA module | 20W power amplifier module | To be updated | 8 | To be updated |
| 18 | Coaxial cable | 500 mm connector | XX | 16 | xx | | | 18 | Coaxial cable | 500 mm connector | To be updated | 16 | To be updated |
| 19 | Housing | | XX | 1 | xx | | | 19 | Housing | | To be updated | 1 | To be updated |
**Table 1** - Components used in RFPA build. **Table 1** - Components used in RFPA build.
...@@ -55,19 +55,20 @@ The rocker switch ③ can be used to select between internal manual unblanking ( ...@@ -55,19 +55,20 @@ The rocker switch ③ can be used to select between internal manual unblanking (
## Functional tests ## Functional tests
### Test of the supply current ### Test of the supply current
By measuring the supply current I_SC, the general function of the individual amplifiers (High Power Amplifier ZHL-20W-13SW+) is to be tested. For this purpose, a multimeter (VOLTCRAFT MT-51, SN: 09126841) was inserted into the current path of the supply current I_SC. According to the amplifier's data sheet, the supply current I_SC is max. 2.8 A during proper operation (with fan). The values measured (Table 2) are within the tolerances. By measuring the supply current I<sub>SC</sub>, the general function of the individual amplifiers (High Power Amplifier ZHL-20W-13SW+) is to be tested. For this purpose, a multimeter (VOLTCRAFT MT-51, SN: 09126841) was inserted into the current path of the supply current I<sub>SC</sub>. According to the amplifier's data sheet, the supply current I<sub>SC</sub> is max. 2.8 A during proper operation (with fan). The values measured (Table 2) are within the tolerances.
| Channel No. | ΔU<sub>out</sub> @f=123 MHz P<sub>in</sub>: | Function | ΔU<sub>out</sub> @f=123 MHz P<sub>in</sub>: | |
| ----- | -------- | -------- | ----- | ----- | | Channel No. | V<sub>out</sub> for P<sub>in</sub>=-20 dBm *f=123 MHz* | V<sub>out</sub> for P<sub>in</sub>=-10 dBm *f=123 MHz* | V<sub>out</sub> for P<sub>in</sub>=-20 dBm *f=297 MHz* | V<sub>out</sub> for P<sub>in</sub>=-10 dBm *f=297 MHz* |
| 1 | SMA connector | RF input | XX | 8 | | ----- | -------- | ----- | ----- | ---- |
| 2 | BNC connector | Input external 5V TTL signal | XX | 1 | | 1 | 682 mV<sub>pp</sub> | 2.000 V<sub>pp</sub> | 550 mV<sub>pp</sub> | 1.710 V<sub>pp</sub> |
| 3 | Toggle switch | TTL or manual blanking | XX | 1 | | 2 | 680 mV<sub>pp</sub> | 2.010 V<sub>pp</sub> | 554 mV<sub>pp</sub> | 1.700 V<sub>pp</sub> |
| 4 | On/off-switch | 230 V power switch | XX | 1 | | 3 | 680 mV<sub>pp</sub> | 2.010 V<sub>pp</sub> | 554 mV<sub>pp</sub> | 1.700 V<sub>pp</sub> |
| 5 | SMA connector | Output RF signal | XX | 16 | | 4 | 694 mV<sub>pp</sub> | 2.040 V<sub>pp</sub> | 566 mV<sub>pp</sub> | 1.740 V<sub>pp</sub> |
| 6 | Fuse | 10 A / electrical protection | XX | 1 | | 5 | 690 mV<sub>pp</sub> | 2.020 V<sub>pp</sub> | 556 mV<sub>pp</sub> | 1.730 V<sub>pp</sub> |
| 7 | C14 connector | Main power supply connector | XX | 1 | | 6 | 718 mV<sub>pp</sub> | 2.110 V<sub>pp</sub> | 590 mV<sub>pp</sub> | 1.840 V<sub>pp</sub> |
| 8 | 24V Power supply | RSP-1000-24 | XX | 1 | | 7 | 676 mV<sub>pp</sub> | 2.000 V<sub>pp</sub> | 546 mV<sub>pp</sub> | 1.690 V<sub>pp</sub> |
| 8 | 696 mV<sub>pp</sub> | 2.060 V<sub>pp</sub> | 578 mV<sub>pp</sub> | 1.790 V<sub>pp</sub> |
### Testing of electrical safety ### Testing of electrical safety
...@@ -75,8 +76,11 @@ The electrical safety test was carried out in accordance with DIN 0701 0702. ...@@ -75,8 +76,11 @@ The electrical safety test was carried out in accordance with DIN 0701 0702.
### Power measurement ### Power measurement
The power measurement is intended to test the general function of the PTX amplifier. For the test setup, an attenuator (inventory no.: 98041129), an oscilloscope (inventory no.: 200052853/1) and a signal generator (inventory no.: 97037910) were used as displayed in Figure 6. The attenuator has an attenuation factor of -30 dB. The measured results are displayed in Table 3. The power measurement is intended to test the general function of the PTX amplifier. For the test setup, an attenuator, an oscilloscope and a signal generator were used as displayed in Figure 6. The attenuator has an attenuation factor of -30 dB. The measured results are displayed in Table 3.
![Power Measurement Setup](./images/power_measurement_setup.jpg "Power Measurement Setup")
**Figure 6** - Power Measurement setup is shown.
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